By the 1920s, which song was called "the negro national anthem"?

True or false ? spain opened the lower mississippi river to american shippi

Which explorer travel the farthest south in his journey

Why was galileo galilei brought before the inquisition? for insisting that earth stands still at the center of the universe for proving that planets move in elliptical orbits for putting forth evidence that earth moves around the sun for suggesting that the sun is a star